<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const obj = {
        uname: "pink",
        age: 18,
        hobby: ["乒乓球", "足球"],
        family: {
          baby: "小pink",
        },
      };
      // 把对象转换为JSON字符串
      //   console.log(JSON.stringify(obj));

      const o = JSON.parse(JSON.stringify(obj));
      console.log(o);
      o.family.baby = "123";
      console.log(obj);
    </script>
  </body>
</html>
